CN110697866A - Method for removing odor in water by using ferrous iron to activate calcium peroxide - Google Patents
Method for removing odor in water by using ferrous iron to activate calcium peroxide Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000004343 Calcium peroxide Substances 0.000 title claims abstract description 68
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 235000019402 calcium peroxide Nutrition 0.000 title claims abstract description 68
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 31
- YWHLKYXPLRWGSE-UHFFFAOYSA-N Dimethyl trisulfide Chemical compound CSSSC YWHLKYXPLRWGSE-UHFFFAOYSA-N 0.000 claims abstract description 53
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 34
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 34
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 34
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 34
- 239000007800 oxidant agent Substances 0.000 claims abstract description 28
- 230000001590 oxidative effect Effects 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 27
- JLPUXFOGCDVKGO-TUAOUCFPSA-N (-)-geosmin Chemical compound C1CCC[C@]2(O)[C@@H](C)CCC[C@]21C JLPUXFOGCDVKGO-TUAOUCFPSA-N 0.000 claims abstract description 25
- 239000001075 (4R,4aR,8aS)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol Substances 0.000 claims abstract description 25
- JLPUXFOGCDVKGO-UHFFFAOYSA-N dl-geosmin Natural products C1CCCC2(O)C(C)CCCC21C JLPUXFOGCDVKGO-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001448 ferrous ion Inorganic materials 0.000 claims abstract description 25
- 229930001467 geosmin Natural products 0.000 claims abstract description 25
- MOQGCGNUWBPGTQ-UHFFFAOYSA-N 2,6,6-trimethyl-1-cyclohexene-1-carboxaldehyde Chemical compound CC1=C(C=O)C(C)(C)CCC1 MOQGCGNUWBPGTQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- -1 dimethyl isobornyl alcohol Chemical compound 0.000 claims abstract description 14
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000010791 quenching Methods 0.000 claims abstract 4
- 230000000171 quenching effect Effects 0.000 claims abstract 4
- 239000000243 solution Substances 0.000 claims description 32
- 238000005070 sampling Methods 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000011259 mixed solution Substances 0.000 claims description 9
- 230000003213 activating effect Effects 0.000 claims description 7
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims 3
- DTGKSKDOIYIVQL-MRTMQBJTSA-N Isoborneol Natural products C1C[C@@]2(C)[C@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-MRTMQBJTSA-N 0.000 claims 1
- CKDOCTFBFTVPSN-UHFFFAOYSA-N borneol Natural products C1CC2(C)C(C)CC1C2(C)C CKDOCTFBFTVPSN-UHFFFAOYSA-N 0.000 claims 1
- 238000004817 gas chromatography Methods 0.000 claims 1
- 238000004885 tandem mass spectrometry Methods 0.000 claims 1
- 208000033962 Fontaine progeroid syndrome Diseases 0.000 abstract description 11
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 abstract description 11
- 239000003205 fragrance Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 235000019645 odor Nutrition 0.000 description 23
- 230000015556 catabolic process Effects 0.000 description 9
- 238000006731 degradation reaction Methods 0.000 description 9
- 239000003651 drinking water Substances 0.000 description 7
- 235000020188 drinking water Nutrition 0.000 description 7
- 230000035943 smell Effects 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Removal Of Specific Substances (AREA)
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Abstract
本发明公开了一种采用亚铁活化过氧化钙去除水中嗅味的方法，将过氧化钙配制成溶液，然后加入硫酸亚铁，配置0.1mol/l的Na2S2O3作为氧化剂淬灭剂备用；准备三份同样的含有二甲基异莰醇、土臭素以及β‑环柠檬醛和二甲基三硫醚的含嗅味水样，分别向上述三份水样中加入步骤(1)制备的溶液，使每份的过氧化钙浓度分别为2.0、1.0、1.0mmol/L，亚铁离子浓度分别为0.5、0.5、0.1mmol/L；每隔一定时间进行取样10mml，将水样送至GCMS系统检测水样当中得到嗅味物质浓度。本发明通过亚铁离子催化过氧化钙产生羟基自由基，高效清洁地去除了水中嗅味物质，能耗少、清洁环保、效率高。
The invention discloses a method for removing odor in water by using ferrous iron to activate calcium peroxide. The calcium peroxide is prepared into a solution, then ferrous sulfate is added, and 0.1 mol/l Na 2 S 2 O 3 is prepared as an oxidant for quenching Prepare three identical odor-containing water samples containing dimethyl isobornyl alcohol, geosmin, β-cyclocitral and dimethyl trisulfide, and add step (1) to the above three water samples respectively. ) solution prepared, so that the calcium peroxide concentration of each part is respectively 2.0, 1.0, 1.0mmol/L, and the ferrous ion concentration is respectively 0.5, 0.5, 0.1mmol/L; Sent to the GCMS system to detect the concentration of odorants in the water sample. The invention uses ferrous ions to catalyze calcium peroxide to generate hydroxyl radicals, effectively and cleanly removes odor substances in water, has low energy consumption, is clean and environmentally friendly, and has high efficiency.
Description
技术领域technical field
本发明涉及撒花装置技术领域，尤其是涉及一种采用亚铁活化过氧化钙去除水中嗅味的方法。The invention relates to the technical field of flower-spreading devices, in particular to a method for removing odor in water by using ferrous iron to activate calcium peroxide.
背景技术Background technique
随着我国社会日益发展，人们对饮用水的水质感官有了更高的要求，异嗅味作为一项常规指标也被列入了《生活饮用水卫生标准》当中(GB5749-2006)。然而近年来，饮用水中含有异嗅味物质的事件频频爆发，给人们的生活用水造成了严重的困扰。水体中异嗅味物质的主要来源是藻类或某些细菌如放线菌等产生的具有恶劣难闻气味的有机物质。这些有机物均具有半挥发性，且嗅阈值极低，一般为纳克升级别。目前水源水体中常见的异嗅味物质有土嗅素、二甲基异莰醇、二甲基三硫醚等。其中前两种嗅味物质最为典型与常见，并作为水质参考指标被纳入了生活饮用水卫生标准当中，其限值均为10ng/l。而近年来各地区频繁藻类爆发事件导致了饮用水源水中异嗅味物质含量超标，从而对给水处理厂造成严重的水处理负担。因此，嗅味物质的有效去除对我国生活饮用水水质保障具有重要意义，也是给水处理厂亟待解决的难题。给水厂的水处理流程一般可以将嗅味物质去除至接近嗅阈值或嗅阈值以下。但在水源水体当中嗅味物质大量存在时，水厂的处理流程则难以将其去除至达标。目前常见的水体中嗅味物质的去除技术有活性炭吸附法、氧化剂氧化法、生物处理法等等。其中氧化法常用的氧化剂有氯、二氧化氯等。但氯氧化法会造成饮用水中三卤甲烷等致癌副产物的产生，且氯氧化剂的残余也会造成水中含有异味。因此找到一种更加清洁有效不会产生副产物的氧化剂对去除水中嗅味具有重要意义。With the increasing development of our society, people have higher requirements for the quality of drinking water, and odor as a routine indicator has also been included in the "Drinking Water Sanitation Standards" (GB5749-2006). However, in recent years, incidents of odorous substances in drinking water have occurred frequently, causing serious trouble to people's domestic water. The main source of odorous substances in water is organic substances with bad and unpleasant odors produced by algae or some bacteria such as actinomycetes. These organic compounds are semi-volatile and have extremely low odor thresholds, generally in the nanogram level. At present, the common odorous substances in water source water are geosmellin, dimethyl isocamphenol, dimethyl trisulfide and so on. Among them, the first two odorants are the most typical and common, and are included in the drinking water hygiene standards as water quality reference indicators, and their limit values are both 10ng/l. In recent years, frequent algae outbreaks in various regions have led to the excessive content of odorous substances in drinking water source water, which has caused serious water treatment burdens to water treatment plants. Therefore, the effective removal of odor substances is of great significance to the guarantee of drinking water quality in my country, and it is also an urgent problem to be solved by water treatment plants. Water treatment processes in water plants can generally remove odorants to near or below the olfactory threshold. However, when the odorous substances exist in large quantities in the source water, it is difficult for the treatment process of the water plant to remove them to the standard. At present, the common removal technologies of odor substances in water include activated carbon adsorption, oxidant oxidation, biological treatment and so on. Among them, the commonly used oxidants in the oxidation method are chlorine, chlorine dioxide, etc. However, the chlorine oxidation method will cause the production of carcinogenic by-products such as trihalomethanes in drinking water, and the residual chlorine oxidant will also cause the water to contain peculiar smells. Therefore, it is of great significance to find a cleaner and more effective oxidant that does not produce by-products to remove odor in water.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种采用亚铁活化过氧化钙去除水中嗅味的方法，通过亚铁离子催化过氧化钙产生羟基自由基，从而高效清洁地去除了水中嗅味物质，具有能耗少、清洁环保、效率高等特点。The object of the present invention is to provide a method for removing odor in water by activating calcium peroxide with ferrous iron, by catalyzing calcium peroxide with ferrous ions to generate hydroxyl radicals, thereby efficiently and cleanly removing odor substances in water, with low energy consumption , clean and environmentally friendly, high efficiency.
为实现上述目的，本发明提供了一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：To achieve the above object, the present invention provides a method for removing odor in water by using ferrous activated calcium peroxide, comprising the following steps:
(1)配置溶液：将过氧化钙配制成溶液，然后加入硫酸亚铁，控制硫酸亚铁的浓度；(1) configuration solution: calcium peroxide is prepared into a solution, then ferrous sulfate is added to control the concentration of ferrous sulfate;
(2)制备氧化剂淬灭剂：配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) prepare oxidant quencher: configure 0.1mol/I Na 2 S 2 O 3 as oxidant quencher for subsequent use;
(3)准备三份同样的含有二甲基异莰醇(2-MIB)、土臭素(GSM)以及β-环柠檬醛(β-cyc)和二甲基三硫醚(DMTS)的含嗅味水样，然后分别向上述三份水样中加入步骤(1)制备的溶液，使每份的过氧化钙浓度分别为2.0mmol/L、1.0mmol/L、1.0mmol/L，亚铁离子浓度分别为0.5mmol/L、0.5mmol/L、0.1mmol/L.，最后使整个反应体系在25℃下震荡反应2h；(3) Prepare three identical olfactory compounds containing dimethyl isocamphenol (2-MIB), geosmin (GSM), and β-cyclocitral (β-cyc) and dimethyl trisulfide (DMTS). Taste water samples, then add the solution prepared in step (1) to the above three water samples respectively, so that the calcium peroxide concentration of each part is 2.0mmol/L, 1.0mmol/L, 1.0mmol/L, ferrous ion The concentrations were 0.5mmol/L, 0.5mmol/L, and 0.1mmol/L. Finally, the entire reaction system was shaken at 25°C for 2h;
(4)取样送检：对步骤(1)中的三份水样每隔一定时间进行取样10mml，将水样放入到添加了100ul淬灭剂的顶空瓶当中，送至GCMS系统检测水样当中得到嗅味物质浓度，对检测结果进行了分析。(4) Sampling and inspection: three water samples in step (1) are sampled 10mml at regular intervals, the water samples are put into the headspace bottle with 100ul of quencher added, and sent to the GCMS system to detect the water The concentration of olfactory substances in the samples was obtained, and the detection results were analyzed.
优选的，所述步骤(1)中加入的过氧化钙和硫酸亚铁的质量比为2∶0.5。Preferably, the mass ratio of calcium peroxide and ferrous sulfate added in the step (1) is 2:0.5.
优选的，所述步骤(3)中的2-MIB和β-cyc的浓度比为20∶1。Preferably, the concentration ratio of 2-MIB and β-cyc in the step (3) is 20:1.
优选的，一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：Preferably, a kind of method that adopts ferrous iron to activate calcium peroxide to remove smell in water, comprises the following steps:
(1)配置溶液：将过氧化钙配制成溶液，然后加入硫酸亚铁，控制硫酸亚铁的浓度；(1) configuration solution: calcium peroxide is prepared into a solution, then ferrous sulfate is added to control the concentration of ferrous sulfate;
(2)制备氧化剂淬灭剂：配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) prepare oxidant quencher: configure 0.1mol/I Na 2 S 2 O 3 as oxidant quencher for subsequent use;
(3)准备同样的分别含有200ng/l的2-MIB、GSM以及10ug/l的β-cyc和DMTS的含嗅味水样3份，每份500mL，然后分别向上述三份水样中加入步骤(1)制备的溶液，使每份的过氧化钙浓度分别为2.0mmol/L、1.0mmol/L、1.0mmol/L，亚铁离子浓度分别为0.5mmol/L、0.5mmol/L、0.1mmol/L.，最后使整个反应体系在25℃下震荡反应2h；(3) Prepare three odorous water samples containing 200ng/l of 2-MIB, GSM and 10ug/l of β-cyc and DMTS respectively, each 500mL, and then add to the above three water samples respectively. The solution prepared by step (1), the calcium peroxide concentration of each part is respectively 2.0mmol/L, 1.0mmol/L, 1.0mmol/L, and the ferrous ion concentration is respectively 0.5mmol/L, 0.5mmol/L, 0.1 mmol/L., and finally the entire reaction system was shaken at 25°C for 2h;
(4)取样送检：对步骤(3)中的三份水样每隔一定时间进行取样10mml，将水样放入到添加了100ul淬灭剂的顶空瓶当中，送至GCMS系统检测水样当中得到嗅味物质浓度，对检测结果进行了分析。(4) Sampling for inspection: three water samples in step (3) are sampled 10mml at regular intervals, the water samples are put into the headspace bottle with 100ul of quencher added, and sent to the GCMS system to detect the water The concentration of olfactory substances in the samples was obtained, and the detection results were analyzed.
优选的，一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：Preferably, a kind of method that adopts ferrous iron to activate calcium peroxide to remove smell in water, comprises the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为1.0mmol/L，亚铁离子浓度为0.1mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 1.0 mmol/L, the ferrous ion concentration is 0.1 mmol/L, and the whole reaction system is shaken and reacted at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、10、20、40、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) sampling 10mml of the three water samples in step (3) at regular intervals, sampling at 0, 10, 20, 40, 60, 90, 120min respectively, put into the In the headspace bottle, it is sent to the GCMS instrument to measure the concentration of odorants in the water sample.
优选的，一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：Preferably, a kind of method that adopts ferrous iron to activate calcium peroxide to remove smell in water, comprises the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为1.0mmol/L，亚铁离子浓度为0.5mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 1.0 mmol/L, the ferrous ion concentration is 0.5 mmol/L, and the whole reaction system is shaken at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、10、20、40、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) sampling 10mml of the three water samples in step (3) at regular intervals, sampling at 0, 10, 20, 40, 60, 90, 120min respectively, put into the In the headspace bottle, it is sent to the GCMS instrument to measure the concentration of odorants in the water sample.
优选的，一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：Preferably, a kind of method that adopts ferrous iron to activate calcium peroxide to remove smell in water, comprises the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为2.0mmol/L，亚铁离子浓度为0.5mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 2.0 mmol/L, the ferrous ion concentration is 0.5 mmol/L, and the entire reaction system is shaken at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、30、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) Sampling 10mml of the three water samples in step (3) at regular intervals, sampling at 0, 30, 60, 90, 120min respectively, and putting them into the headspace bottle with 100ul of quencher added , sent to the GCMS instrument to measure the concentration of odor substances in the water sample.
因此，本发明采用上述结构的采用亚铁活化过氧化钙去除水中嗅味的方法，通过亚铁离子催化过氧化钙产生羟基自由基，从而高效清洁地去除了水中嗅味物质，具有能耗少、清洁环保、效率高等特点。Therefore, the present invention adopts the above-mentioned method for activating calcium peroxide by ferrous iron to remove odor in water, and catalyzes calcium peroxide to generate hydroxyl radicals by ferrous ions, thereby efficiently and cleanly removing odor substances in water, with low energy consumption. , clean and environmentally friendly, high efficiency.
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.
附图说明Description of drawings
图1为一种采用亚铁活化过氧化钙去除水中嗅味的方法实施例1中过氧化钙浓度为1.0mol/l、亚铁离子浓度为0.1mol/l时嗅味物质的降解曲线；Fig. 1 is a kind of degradation curve of olfactory substance when calcium peroxide concentration is 1.0mol/l and ferrous ion concentration is 0.1mol/l in the
图2为一种采用亚铁活化过氧化钙去除水中嗅味的方法实施例2中过氧化钙浓度为1.0mol/l、亚铁离子浓度为0.5mol/l时嗅味物质的降解曲线；Fig. 2 is a kind of degradation curve of olfactory substance when calcium peroxide concentration is 1.0mol/l and ferrous ion concentration is 0.5mol/l in the
图3为一种采用亚铁活化过氧化钙去除水中嗅味的方法实施例3中过氧化钙浓度为2.0mol/l、亚铁离子浓度为0.5mol/l时嗅味物质的降解曲线。Fig. 3 is a kind of method of adopting ferrous activated calcium peroxide to remove odor in water. In Example 3, the calcium peroxide concentration is 2.0mol/l, and the ferrous ion concentration is 0.5mol/l, the degradation curve of the olfactory substance.
具体实施方式Detailed ways
本发明提供了一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：The invention provides a method for removing odor in water by using ferrous iron to activate calcium peroxide, comprising the following steps:
(1)配置溶液：将过氧化钙配制成溶液，然后加入硫酸亚铁，控制硫酸亚铁的浓度，过氧化钙和硫酸亚铁的质量比为2∶0.5；(1) configuration solution: calcium peroxide is prepared into a solution, then ferrous sulfate is added to control the concentration of ferrous sulfate, and the mass ratio of calcium peroxide to ferrous sulfate is 2:0.5;
(2)制备氧化剂淬灭剂：配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) prepare oxidant quencher: configure 0.1mol/I Na 2 S 2 O 3 as oxidant quencher for subsequent use;
(3)准备三份同样的含有二甲基异莰醇(2-MIB)、土臭素(GSM)以及β-环柠檬醛(β-cyc)和二甲基三硫醚(DMTS)的含嗅味水样，2-MIB和β-cyc的浓度比为20∶1，然后分别向上述三份水样中加入步骤(1)制备的溶液，使每份的过氧化钙浓度分别为2.0mmol/L、1.0mmol/L、1.0mmol/L，亚铁离子浓度分别为0.5mmol/L、0.5mmol/L、0.1mmol/L.，最后使整个反应体系在25℃下震荡反应2h；(3) Prepare three identical olfactory compounds containing dimethyl isocamphenol (2-MIB), geosmin (GSM), and β-cyclocitral (β-cyc) and dimethyl trisulfide (DMTS). Taste water sample, the concentration ratio of 2-MIB and β-cyc is 20:1, then add the solution prepared in step (1) to the above three water samples respectively, so that the calcium peroxide concentration of each part is 2.0mmol/ L, 1.0mmol/L, 1.0mmol/L, ferrous ion concentrations were 0.5mmol/L, 0.5mmol/L, 0.1mmol/L. Finally, the entire reaction system was shaken at 25°C for 2h;
(4)取样送检：对步骤(1)中的三份水样每隔一定时间进行取样10mml，将水样放入到添加了100ul淬灭剂的顶空瓶当中，送至GCMS系统检测水样当中得到嗅味物质浓度，对检测结果进行了分析。(4) Sampling and inspection: three water samples in step (1) are sampled 10mml at regular intervals, the water samples are put into the headspace bottle with 100ul of quencher added, and sent to the GCMS system to detect the water The concentration of olfactory substances in the samples was obtained, and the detection results were analyzed.
进一步的，一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：Further, a method for removing odor in water using ferrous activated calcium peroxide, comprising the following steps:
(1)配置溶液：将过氧化钙配制成溶液，然后加入硫酸亚铁，控制硫酸亚铁的浓度；(1) configuration solution: calcium peroxide is prepared into a solution, then ferrous sulfate is added to control the concentration of ferrous sulfate;
(2)制备氧化剂淬灭剂：配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) prepare oxidant quencher: configure 0.1mol/I Na 2 S 2 O 3 as oxidant quencher for subsequent use;
(3)准备同样的分别含有200ng/l的2-MTB、GSM以及10ug/l的β-cyc和DMTS的含嗅味水样3份，每份500mL，然后分别向上述三份水样中加入步骤(1)制备的溶液，使每份的过氧化钙浓度分别为2.0mmol/L、1.0mmol/L、1.0mmol/L，亚铁离子浓度分别为0.5mmol/L、0.5mmol/L、0.1mmol/L.，最后使整个反应体系在25℃下震荡反应2h；(3) Prepare three odorous water samples containing 200ng/l of 2-MTB, GSM and 10ug/l of β-cyc and DMTS respectively, each 500mL, and then add to the above three water samples respectively. The solution prepared by step (1), the calcium peroxide concentration of each part is respectively 2.0mmol/L, 1.0mmol/L, 1.0mmol/L, and the ferrous ion concentration is respectively 0.5mmol/L, 0.5mmol/L, 0.1 mmol/L., and finally the entire reaction system was shaken at 25°C for 2h;
(4)取样送检：对步骤(3)中的三份水样每隔一定时间进行取样10mml，将水样放入到添加了100ul淬灭剂的顶空瓶当中，送至GCMS系统检测水样当中得到嗅味物质浓度，对检测结果进行了分析。(4) Sampling for inspection: three water samples in step (3) are sampled 10mml at regular intervals, the water samples are put into the headspace bottle with 100ul of quencher added, and sent to the GCMS system to detect the water The concentration of olfactory substances in the samples was obtained, and the detection results were analyzed.
实施例1Example 1
一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：A method for removing odor in water by activating calcium peroxide with ferrous iron, comprising the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为1.0mmol/L，亚铁离子浓度为0.1mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500 mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 1.0 mmol/L, the ferrous ion concentration is 0.1 mmol/L, and the whole reaction system is shaken and reacted at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、10、20、40、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) Sampling 10mml of three water samples in step (3) at regular intervals, sampling at 0, 10, 20, 40, 60, 90, 120min time respectively, put into the water sample that added 100ul quencher In the headspace bottle, it is sent to the GCMS instrument to measure the concentration of odorants in the water sample.
如图1所示，结果发现反应2h后土臭素(GSM)、β-环柠檬醛(β-cyc)和二甲基三硫醚(DMTS)的降解去除率分别可达10.7％、16.7％、97.6％。对二甲基异莰醇(2-MIB)基本无去除效果，且反应进行10min后DMTS的降解率既可达96％以上。As shown in Figure 1, it was found that the degradation and removal rates of geosmin (GSM), β-cyclocitral (β-cyc) and dimethyl trisulfide (DMTS) after 2 h of reaction were up to 10.7%, 16.7%, 97.6%. Dimethyl isocamphenol (2-MIB) has basically no removal effect, and the degradation rate of DMTS can reach more than 96% after the reaction is carried out for 10 minutes.
实施例2Example 2
一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：A method for removing odor in water by activating calcium peroxide with ferrous iron, comprising the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为1.0mmol/L，亚铁离子浓度为0.5mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 1.0 mmol/L, the ferrous ion concentration is 0.5 mmol/L, and the whole reaction system is shaken at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、10、20、40、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) Sampling 10mml of three water samples in step (3) at regular intervals, sampling at 0, 10, 20, 40, 60, 90, 120min time respectively, put into the water sample that added 100ul quencher In the headspace bottle, it is sent to the GCMS instrument to measure the concentration of odorants in the water sample.
如图2所示，结果发现反应2h后二甲基异莰醇(2-MIB)、土臭素(GSM)、β-环柠檬醛(β-cyc)和二甲基三硫醚(DMTS)的降解去除率分别可达9.9％、19.3％、23.8％、99.9％，对DMTS降解效果非常好。As shown in Fig. 2, it was found that after 2 h of reaction, dimethyl isocamphenol (2-MIB), geosmin (GSM), β-cyclocitral (β-cyc) and dimethyl trisulfide (DMTS) were The degradation and removal rates can reach 9.9%, 19.3%, 23.8%, and 99.9%, respectively, and the degradation effect of DMTS is very good.
实施例3Example 3
一种采用亚铁活化过氧化钙去除水中嗅味的方法，包括以下步骤：A method for removing odor in water by activating calcium peroxide with ferrous iron, comprising the following steps:
(1)将过氧化钙配成溶液，然后加入硫酸亚铁，控制过氧化钙和硫酸亚铁的浓度；(1) calcium peroxide is made into solution, then add ferrous sulfate, control the concentration of calcium peroxide and ferrous sulfate;
(2)配置0.1mol/I的Na2S2O3作为氧化剂淬灭剂备用；(2) configure 0.1mol/I Na 2 S 2 O 3 as an oxidant quencher for subsequent use;
(3)准备同样的含有200ng/I的2-MIB、GSM、β-cyc和DMTS的含嗅味水样500mL，加入步骤(1)所制得的混合液，使每份的过氧化钙浓度为2.0mmol/L，亚铁离子浓度为0.5mmol/L，使整个反应体系在25℃下震荡反应2h；(3) Prepare 500mL of the same odorous water sample containing 200ng/I of 2-MIB, GSM, β-cyc and DMTS, add the mixed solution obtained in step (1) to make the calcium peroxide concentration of each part is 2.0 mmol/L, the ferrous ion concentration is 0.5 mmol/L, and the entire reaction system is shaken at 25 °C for 2 h;
(4)对步骤(3)中的三份水样每隔一定时间进行取样10mml，时间分别在0、30、60、90、120min时刻取样，放入添加了100ul淬灭剂的顶空瓶当中，送至GCMS仪器测得水样当中嗅味物质浓度。(4) Sampling 10mml of the three water samples in step (3) at regular intervals, sampling at 0, 30, 60, 90, and 120min respectively, and putting them into the headspace bottle with 100ul of quencher added , sent to the GCMS instrument to measure the concentration of odor substances in the water sample.
如图3所示，结果发现反应2h后二甲基异莰醇(2-MIB)、土臭素(GSM)、β-环柠檬醛(β-cyc)和二甲基三硫醚(DMTS)的降解去除率分别可达26.8％、26.8％、37.0％、98.8％。发现加大过氧化钙和亚铁离子的投加量可以提高二甲基异莰醇和土嗅素的降解率，但是对β-环柠檬醛和二甲基三硫醚的去除效果并无显著提高，其中二甲基三硫醚已经接近完全降解。As shown in Fig. 3, it was found that after 2 h of reaction, dimethyl isobornyl alcohol (2-MIB), geosmin (GSM), β-cyclocitral (β-cyc) and dimethyl trisulfide (DMTS) were The degradation and removal rates can reach 26.8%, 26.8%, 37.0% and 98.8%, respectively. It was found that increasing the dosage of calcium peroxide and ferrous ions can improve the degradation rate of dimethyl isocamphenol and terresin, but the removal effect of β-cyclocitral and dimethyl trisulfide did not significantly improve , in which dimethyl trisulfide has been nearly completely degraded.
反应机理：氧化剂在催化剂或者是光照等条件激活下，产生了一系列高能态氧化自由基如羟基自由基等，从而高效迅速的降解污染物，过氧化钙(CaO2)是一种稳定性好，无毒的氧化剂，在潮湿空气及水中缓慢分解，可持续缓慢的释放H2O2。其在亚铁离子(Fe2+)的存在下，可生成高能态的羟基自由基，从而有效的去除水中嗅味物质，降解彻底，且不会产生有毒有害副产物。Reaction mechanism: The oxidant is activated by a catalyst or light and other conditions to generate a series of high-energy state oxidative radicals such as hydroxyl radicals, etc., so as to degrade pollutants efficiently and rapidly. Calcium peroxide (CaO 2 ) is a stable , a non-toxic oxidant, decomposes slowly in moist air and water, and can release H 2 O 2 slowly and sustainably. In the presence of ferrous ions (Fe 2+ ), it can generate high-energy hydroxyl radicals, thereby effectively removing odor substances in water, degrading completely, and without producing toxic and harmful by-products.
因此，本发明采用上述结构的采用亚铁活化过氧化钙去除水中嗅味的方法，通过亚铁离子催化过氧化钙产生羟基自由基，从而高效清洁地去除了水中嗅味物质，具有能耗少、清洁环保、效率高等特点。Therefore, the present invention adopts the above-mentioned method for activating calcium peroxide by ferrous iron to remove odor in water, and catalyzes calcium peroxide to generate hydroxyl radicals by ferrous ions, thereby efficiently and cleanly removing odor substances in water, with low energy consumption. , clean and environmentally friendly, high efficiency.
最后应说明的是：以上实施例仅用以说明本发明的技术方案而非对其进行限制，尽管参照较佳实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对本发明的技术方案进行修改或者等同替换，而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still The technical solutions of the present invention may be modified or equivalently replaced, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the spirit and scope of the technical solutions of the present invention.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003116A1 (en) * | 2000-07-07 | 2002-01-10 | Golden Josh H. | System and method for removal of arsenic from aqueous solutions |
| CN105000655A (en) * | 2015-08-05 | 2015-10-28 | 同济大学 | Method for removing algae in water through oxidizing agent activated through ferrous iron |
| CN105036290A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ferrous iron |
| CN106955706A (en) * | 2017-03-31 | 2017-07-18 | 常州大学 | A kind of NZVI/CaO2The method of phthalic acid ester in Synergistic degradation underground water |
Family Cites Families (2)
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|---|---|---|---|---|
| CN102701345B (en) * | 2012-05-21 | 2013-12-11 | 中国科学院生态环境研究中心 | Preoxidation-coagulation algae removing method based on in-situ generation of double coagulants |
| CN109354143B (en) * | 2018-11-16 | 2022-02-18 | 同济大学 | Method for treating high algae content water based on calcium peroxide reinforced coagulation |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003116A1 (en) * | 2000-07-07 | 2002-01-10 | Golden Josh H. | System and method for removal of arsenic from aqueous solutions |
| CN105000655A (en) * | 2015-08-05 | 2015-10-28 | 同济大学 | Method for removing algae in water through oxidizing agent activated through ferrous iron |
| CN105036290A (en) * | 2015-08-05 | 2015-11-11 | 同济大学 | Method for degrading smelly substance in water through oxidizing agent activated by ferrous iron |
| CN106955706A (en) * | 2017-03-31 | 2017-07-18 | 常州大学 | A kind of NZVI/CaO2The method of phthalic acid ester in Synergistic degradation underground water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117923669A (en) * | 2024-01-04 | 2024-04-26 | 南京农业大学 | An improved method for degrading polycyclic aromatic hydrocarbons using a complex system of degrading bacteria |
| CN117923669B (en) * | 2024-01-04 | 2024-09-20 | 南京农业大学 | Improved method for degrading polycyclic aromatic hydrocarbon by using degrading flora compound system |
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| CN113912173A (en) | 2022-01-11 |
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